Ear Warmer Frame with Partial Fabric Coverage for Weight Reduction
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Solution Overview
Problem
Conventional ear warmers are not lightweight enough for non-sedentary outdoor activities while maintaining warmth, as they typically have a weight appropriate for sedentary activities.
Innovation Solution
An ear warmer design featuring a frame with a band portion and ear portions, where the fabric member covers the interior portion of the opening substantially in its entirety or less, and is coupled to the frame using various coupling techniques such as press-fit, tongue-and-groove, or clip-on connections, allowing for a lightweight and adjustable configuration.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Weight of moving object
If conventional ear warmers use traditional frame and fabric construction, then warmth is maintained, but weight is too heavy for non-sedentary activities
Solution Approach 1:
The ear warmer is divided into separate components: a frame structure and a fabric member that can be attached or removed. This segmentation allows the user to wear only the lightweight frame during non-sedentary activities while maintaining warmth when the fabric member is attached during sedentary activities.
Solution Approach 2:
The fabric member is positioned specifically at the ear portions where warmth is most needed, rather than covering the entire head. This localized approach provides warmth to the critical ear areas while minimizing overall weight and material usage.
2Temperature
If the fabric member covers the entire opening, then maximum warmth is provided, but weight and complexity increase
Solution Approach 1:
The fabric member is designed to cover only the interior portion of the opening rather than the entire opening including the exterior portion. This partial coverage is sufficient to trap warmth inside the ear warmer while reducing the amount of fabric material needed, thereby decreasing weight.
3Temperature
If the ear warmer is designed for sedentary activities, then warmth is optimized, but it is too heavy for running or jogging
Solution Approach 1:
The ear warmer transitions from a static, fixed-configuration design to a dynamic design where the fabric member can be attached or removed based on activity level. During sedentary activities, the fabric member is attached for maximum warmth; during non-sedentary activities like running, the fabric member is removed leaving only the lightweight frame.
Solution Approach 2:
The frame structure serves multiple functions: it provides the structural framework for the ear warmer, maintains the shape and positioning, and can be worn alone as a minimal-weight option or with the fabric member attached for enhanced warmth. This multi-functionality allows the same base structure to adapt to different activity requirements.
Data Source
AI summary
An ear warmer comprises a frame and a fabric member. The frame has an ear portion and a band portion. The ear portion of the frame includes a first side and a second side opposite the first side. The first side of the ear portion defines an interior portion of an opening. The second side of the ear portion defines an exterior portion of the opening. The fabric member includes at least its own ear portion coupled to the ear portion of the frame. The ear portion of the fabric member covers the interior portion of the opening in substantially its entirety and covers less than an entirety of the exterior portion of the opening.